Rising Pecs

I walked into a room full of women and they were grabbing people by the jaw as they came in and lifting up on their heads. As they lifted up, the entrants' pectoral muscles would lift up as well, toward the sky. The question was whether the pecs fell back down again when the women released the head. If the pecs fell down, you went to one side of the room, if they stayed up, you went to the other. I ended up in the former group, but don't know why or what the repercussions of that are.